首页> 外国专利> PRODUCTION METHOD FOR POLYTETRAFLUOROETHYLENE POROUS FILM, PRODUCTION METHOD FOR WATERPROOF AIR-PERMEABLE MEMBER, AND PRODUCTION METHOD FOR AIR FILTER FILTERING MEDIUM

PRODUCTION METHOD FOR POLYTETRAFLUOROETHYLENE POROUS FILM, PRODUCTION METHOD FOR WATERPROOF AIR-PERMEABLE MEMBER, AND PRODUCTION METHOD FOR AIR FILTER FILTERING MEDIUM

机译:聚四氟乙烯多孔膜的制造方法,防水透气性构件的制造方法以及空气过滤器过滤介质的制造方法

摘要

A method comprising: a step (A) in which a mixture including a PTFE fine powder and a liquid lubricant is pushed out into a sheet shape and a PTFE sheet is obtained; a step (B) in which the PTFE sheet is caused to pass through and is rolled between a pair of rolls along the longitudinal direction of the PTFE sheet; a step (C) in which the rolled PTFE sheet is heated to a temperature of at least 19°C; a step (D) in which the rolled PTFE sheet being at a temperature of at least 19°C is extended in the width direction thereof; a step (E) in which the liquid lubricant is removed from the PTFE sheet; and a step (F) in which the PTFE sheet having the liquid lubricant removed therefrom is extended in both the longitudinal and width directions thereof and is made porous.
机译:一种方法,其包括:步骤(A),其中将包括PTFE细粉和液体润滑剂的混合物推出为片状,并且获得PTFE片。步骤(B),其中使PTFE片穿过并沿PTFE片的纵向在一对辊之间辊压;步骤(C),其中将压延的PTFE片材加热至至少19℃的温度;在工序(D)中,将温度为19℃以上的压延PTFE片在其宽度方向上延伸。步骤(E),从聚四氟乙烯板中除去液体润滑剂。步骤(F),其中已经除去了液体润滑剂的PTFE片材在其纵向和宽度方向上均延伸,并使其多孔。

著录项

  • 公开/公告号WO2015105040A1

    专利类型

  • 公开/公告日2015-07-16

    原文格式PDF

  • 申请/专利权人 NITTO DENKO CORPORATION;

    申请/专利号WO2015JP00019

  • 发明设计人 UCHIYAMA SHIHO;AIZAWA SEIJI;

    申请日2015-01-06

  • 分类号B01D71/36;B01D39/16;B01D69/10;C08J9;

  • 国家 WO

  • 入库时间 2022-08-21 15:05:22

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号